From Ma$e to Ludacris to Ice Cube and more, here are 20 instances in which rappers we love released a song that proved to be a mistake, were considered a blemish on their resume or just missed the mark.

The Weeknd’s chart-topping ballad “The Hills” gets a high-powered guest feature by way of Eminem. The Detroit rhymer jumps on the remix to the drug-induced song and delivers wickedly sexy rhymes from the viewpoint of Slim Shady.

Eminem may be a hero to his stans, but there's one rapper that the Detroit native looks up to himself: Tupac Shakur. For Paper magazine's "Nowstalgia" issue, Slim Shady wrote a touching tribute to the legendary MC.

Eminem is known as one of the most liked and respected rappers in the game but he also has a reputation for spewing his fair share of ill-advised rhymes. This time, it's his lyrics on "Medicine Man," from Dr. Dre's new album, 'Compton.'

Eminem is one of the most influential rappers in hip-hop. Do you know who actually influenced the Detroit rhymer himself to rap? Apparently, Em was so enamored by Tupac Shakur that he actually sent his mother, Afeni Shakur, a letter.